Flip a plotted object horizontally?

Question

Jeff Smith 2018-3-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/390498-flip-a-plotted-object-horizontally

回答： Walter Roberson 2018-3-25

So I'm plotting a moving object that basically moves like the old DVD "away" loading screen. The object basically bounces around the plane, but without exceeding the limits I've set. (-15 to 15 in the x and y direction). I'm basically trying to figure out how to make the object flip horizontally so that the nose of the object is actually going in the direction of the object. How would I go about this?

BTW I'm using a for loop to move the object along the graph.

If you have any questions or need any of my code, I'll post it.

thanks.

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Answer 1

Walter Roberson 2018-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/390498-flip-a-plotted-object-horizontally#answer_311798

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Suppose you define the object so that the nose is at the left, with the resting value being x = 0, y = 0. Then as it moves from right to left, adjust the graphic object's X and Y coordinates as

object.XData = nose_x + model_x_coordinates;
object.YData = nose_y + mode_y_coordinates;

and to move towards the right,

object.XData = nose_x - model_x_coordinates;
object.YData = nose_y + model_y_coordinates;    %because you do not flip it upside down when it moves to the right